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PROTO J3021 SAE Double End Open End Wrench - SAE, Double End, Open End Wrenches
PROTOSAE, Double End, Open End Wrenches

PROTO J3021 SAE Double End Open End Wrench

<p>The PROTO J3021 is a precision-engineered SAE double end open end wrench, designed for professional use in industrial maintenance and assembly. With a 3/8 in x 7/16 in head size and a satin finish, this wrench…

SKU 3G-OTH-284789

Also listed as: J 3021 · J-3021

Brand
PROTO
Item
J3021 SAE Double End Open End Wrench
Part Number
J3021
Category
SAE, Double End, Open End Wrenches
Available to Order
Also known as:J3021PROTO
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Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Delivery
Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
Payment
Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
Ships to
Singapore

Technical Specifications

PROTO
Manufacturer Part Number
J3021
Type
Satin, 3/8 in_7/16 in Head Size, Std
Overall Lg
5 3/4 in

Technical Documents

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PROTO Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

<p>The PROTO J3021 is a precision-engineered SAE double end open end wrench, designed for professional use in industrial maintenance and assembly. With a 3/8 in x 7/16 in head size and a satin finish, this wrench offers a secure grip and corrosion resistance. The overall length of 5-3/4 in provides optimal leverage for standard applications.</p><p>Ideal for mechanics, technicians, and engineers in sectors like manufacturing, automotive, and aerospace, this wrench is a reliable addition to any tool kit. As a Singapore-based supplier, 3G Electric offers this PROTO wrench with SGD quotes on request, GST handled for local buyers, and fast delivery across Singapore and Southeast Asia.</p>

Frequently Asked Questions

What are the head sizes of the PROTO J3021 wrench?

The PROTO J3021 is a double end open end wrench with head sizes of 3/8 inch and 7/16 inch, both SAE standard.

Can I get a quote in SGD and delivery in Singapore?

Yes, 3G Electric provides SGD quotes on request. For Singapore buyers, GST is handled, and we offer fast delivery across Singapore and Southeast Asia.

Used in

Common applications for PROTO
Automotive assembly — PROTO J72102 impact socket set for fastening lug nuts on production lines
Heavy equipment maintenance — PROTO J3772T flare nut wrench for hydraulic line fittings on excavators
General industrial repair — PROTO J795SA adjustable wrench set for tightening bolts on conveyor systems
Aerospace manufacturing — PROTO J5240A slotted bit socket for adjusting fasteners in confined spaces
Oil and gas pipeline work — PROTO J5438 12-point socket for valve assembly in refineries
Construction site toolkits — PROTO J8179-T500 double box wrench for structural steel bolting
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PROTO Products

3G Electric supplies PROTO sae, double end, open end wrenches. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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